PYTHON-5339 Clean up GitHub PR definitions in Evergreen Project #2288

Job	Run time
Make SDist	50s
Build wheels for manylinux_x86_64	2m 17s
Build wheels for manylinux_aarch64	11m 30s
Build wheels for manylinux_ppc64le	10m 46s
Build wheels for manylinux_s390x	11m 26s
Build wheels for manylinux_i686	2m 25s
Build wheels for win_amd6	5m 12s
Build wheels for win32	4m 33s
Build wheels for macos	3m 52s
Download Wheels	6s
	52m 57s

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